Laser phase distance measuring type measuring drill rod

• Main Authors: CHEN WEI, LIU JIAN, WANG CHONG, LEI LEI, WANG SHAOJUN, LU PENG, WU JIAN, WANG LIANG, LI YI, GUO ANXIANG, ZHANG ZHENGQING, SHI YIQING, BAI XIAOCHUN, ZHOU HAIHONG, KONG ZHIZHAN, JIANG TAO, ZHAO YINGBO, WU TING, JIANG DAN, WAN HAO, WANG CHENXI, JIAN YONGFENG
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The utility model discloses a laser phase distance measuring type measuring drill rod which comprises a measuring drill rod, a modulator, a laser device and a receiver are installed on the top of the measuring drill rod, the modulator is connected with the laser device and used for modulating laser emitted by the laser device, the laser device is used for emitting laser, and the receiver is used for receiving reflected waves of the laser emitted by the laser device. According to the utility model, the laser phase modulation ranging principle is utilized, the solution of the soil position is realized by measuring the phase difference between laser emission and laser receiving, and the solution precision is improved by utilizing coherent demodulation, so that more reliable and accurate water and soil loss data are obtained. 本实用新型公开了一种激光相位测距型测钎，包括测钎杆，测钎杆顶部安装有调制器、激光器和接收器，调制器和激光器连接，用于对激光器发射的激光进行调制，所述激光器用于发射激光，接收器用于接收激光器发射的激光的反射波。本实用新型利用激光相位调制测距原理，通过测量激光发射及接收的相位差实现土壤位置的解算，并利用相干解调提升解算精度，从而得到更为可靠、准确的水土流失数据。